CN116122099A - Road structure capable of improving music road surface drainage effect - Google Patents

Abstract

The invention discloses a road structure capable of improving the water drainage effect of a music road surface. The surface layer structure comprises a music notch, an asphalt cover surface, a dredging asphalt layer, modified asphalt and an oblique drainage seam. The cushion structure comprises a broken stone water storage cushion layer, a dredging cushion layer and a fine stone cushion layer. The foundation structure comprises an artificial roadbed and a natural soil base. The drainage structure comprises a rainwater grate well cover, an assembly slot, a longitudinal collecting pipeline, a flow guide pipe, a drain pipe and a sieve plate. The music road surface music road can be applied to music road surfaces of scenic spot roads with higher requirements on road landscapes, and can effectively solve the problem of road surface ponding of the music road aiming at reconstruction projects of road sections easy to ponding, thereby avoiding bad music effects, traffic accidents and structural damage.

Description

Road structure capable of improving music road surface drainage effect

Technical Field

The invention relates to the technical field of road structures, in particular to a road structure capable of improving a music road surface drainage effect.

Background

Along with the continuous improvement of the living standard of people and the continuous development of social economy, people put forward higher requirements on road landscapes related to daily travel, especially scenic spot roads with beautiful landscapes. The music road is used as a new road form, a unique and novel road sounding method is applied, and the requirement of people on road landscapes is met.

By grooving the road surface, a music road surface can be manufactured. When the vehicle runs through the continuous grooves with different intervals and different lengths, the tire presses the line gaps to generate musical sounds with different tones and different lengths, and then a song can be formed.

However, the existing music pavement technology mainly adopts cement panels for grooving, and adopts traditional drainage ditches for drainage, and the panels and ditches are not subjected to hydrophobic modification, so that the anti-skid drainage performance of the music pavement is rapidly attenuated. Road surface ponding not only influences music road surface sound production effect, but also because road surface antiskid capability is not enough, road surface ponding influences the driver and riding vision and other reasons for traffic accident frequently occurs, endangers personal safety. In addition, if accumulated water cannot be discharged in time, the road surface structure is easily damaged by rain water seepage. In severe cold seasons, accumulated water in the groove also enables the anti-skid and anti-frost crack effects of the music pavement to be improved.

Disclosure of Invention

The invention aims to solve the technical problems of the prior art, and provides a road structure capable of improving the water drainage effect of a music road surface, which can solve the problems of poor sounding effect, potential safety hazards of driving, structural damage risk and the like of the music road surface caused by grooved water accumulation.

In order to solve the technical problems, the invention adopts the following technical scheme:

a road structure capable of improving the water draining effect of a music road surface comprises a surface layer structure, a cushion layer structure, a foundation structure and a water draining structure.

The surface layer structure, the cushion layer structure and the foundation structure are sequentially arranged from top to bottom.

The surface layer structure comprises a dredging asphalt layer and an asphalt cover surface which are sequentially arranged from bottom to top.

The thickness of the asphalt mat coat is 10-20 mm, the maximum nominal particle diameter of the particles in the asphalt mat coat is 9.5-13.2 mm, and the porosity is 13-15%.

The top of the asphalt mat surface is provided with a music notch, the depth of the music notch is 5-10mm smaller than the thickness of the asphalt mat surface, and the width of the music notch is 8-12mm.

The bottom and side walls of each music score groove are coated with a water resistant material.

The side wall of each music notch is provided with a plurality of oblique drain seams; the width of each oblique drain seam is 1-2mm, and the inclination angle of each oblique drain seam and the horizontal plane is 30-60 degrees.

The drainage structures are arranged on two sides of the surface layer structure and the cushion layer structure and used for draining the surface layer structure and the cushion layer structure.

The top surface of the asphalt mat surface is provided with a bidirectional transverse slope, and the slope top of the bidirectional transverse slope is positioned at the center of the pavement of the asphalt mat surface; the clearance of the oblique drainage joints positioned in the middle of the bidirectional transverse slope is d1, and the clearance of the oblique drainage joints positioned at the two sides of the bidirectional transverse slope is d2, wherein d1 is more than d2.

The cushion structure comprises a broken stone water storage cushion layer, a dredging cushion layer and a fine stone cushion layer which are sequentially arranged from top to bottom; wherein, the average grain diameter of fine stones in the fine stone cushion layer is smaller than the average grain diameter of broken stones in the broken stone water storage cushion layer.

The particle size distribution of the broken stone in the broken stone water storage cushion layer is 3-5 mm; the grain size distribution of fine stones in the fine stone cushion layer is 1-3 mm, and the grain size distribution of cushion layer grains in the dredging cushion layer is 5-10 mm.

The waterproof material coated in each music notch is modified asphalt, and the coating wall thickness of the modified asphalt is 2-3mm.

The modified asphalt is added with a water repellent.

The modified asphalt is added with a chloride salt type antifreeze material.

The foundation structure comprises an artificial roadbed and a natural soil foundation; wherein the artificial roadbed is arranged at the bottom of the cushion layer structure; the natural soil base sets up in artificial roadbed both sides, and the top flushes with the fine stone bed course top in the bed course structure.

The drainage structure comprises an assembly slot, a well cover, a longitudinal collecting pipe, a sieve plate and a drain pipe.

The assembly slots are arranged at the tops of the natural soil bases at two sides of the traffic lane.

The well lid cover is arranged at the top of each assembly slot.

The screen plate is adhered to two sides of the surface layer structure, the broken stone water storage cushion layer and the dredging cushion layer.

The longitudinal collecting pipes are buried in the fine stone cushion layer along the longitudinal direction.

The drain pipe is used for draining the water body in the assembly slot and the longitudinal collecting pipe.

A plurality of water holes with the same size are arranged in the sieve plate, and the mesh number of each water hole is ten.

The invention has the following beneficial effects:

1. the music road surface music road can be applied to music road surfaces of scenic spot roads with higher requirements on road landscapes, and can effectively solve the problem of road surface ponding of the music road aiming at reconstruction projects of road sections easy to ponding, thereby avoiding bad music effects, traffic accidents and structural damage.

2. According to the invention, the existing cement panel is replaced by the semi-open graded asphalt cover surface provided with the ultrathin super-adhesive modified asphalt with larger pores, so that the formation of a water layer on the road surface is prevented; oblique drainage slits are engraved on two sides of the original music pavement grooving, so that water accumulation in the grooving is prevented; the broken stone water storage cushion layer with the hydrophobic structure can effectively diffuse stress concentration at the contact position of the semi-open graded asphalt cover surface of the ultra-thin super-viscous modified asphalt and the notch, prolong the service life of the semi-open graded asphalt cover surface of the ultra-thin super-viscous modified asphalt, and can be matched with a transverse collecting pipeline, a guide pipe and a drain pipe to gradually drain absorbed accumulated water to two sides; the sieve plate with uniform mesh holes can not only effectively drain water seepage inside the music pavement to the assembly grooves, but also prevent the wetted surface layer and base layer materials from sliding down and blocking the assembly grooves.

3. According to the invention, the modified asphalt added with the water repellent, the rubber particles, the chloride salt type antifreeze material and the like is coated on the inner wall of the music score groove, so that the area of the music score groove in direct contact with water can be reduced. In chilly winter, can reduce the freezing of notch inside, increase the antiskid effect on road surface, reduce the inside damage of freezing to the notch of notch, and then make the road surface have good frost crack prevention effect.

Drawings

Fig. 1 is a schematic view of a road structure capable of improving the water draining effect of a music road surface according to the present invention.

Fig. 2 is a plan view of a road structure capable of improving the water drainage effect of a music road surface according to the present invention.

Fig. 3 is a schematic layout of music score grooves according to the present invention.

Fig. 4 is a schematic layout of oblique drainage slits in a single music score according to the present invention.

The method comprises the following steps:

1. a facing structure;

101. cutting grooves in music; 102. asphalt cover; 103. dredging the asphalt layer; 104. modified asphalt; 105. oblique drain slots;

2. a cushion layer structure;

201. a crushed stone water storage cushion layer; 202. a dredging cushion layer; 203. a fine stone cushion layer;

3. a base structure;

301. an artificial roadbed; 302. a natural soil base;

4. a drainage structure;

401. a well cover; 402. assembling a pipeline; 403. assembling and slotting; 404. a longitudinal collection tube; 405. a flow guiding pipe; 406. a drain pipe; 407. a sieve plate.

Detailed Description

The invention will be described in further detail with reference to the accompanying drawings and specific preferred embodiments.

In the description of the present invention, it should be understood that the terms "left", "right", "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and "first", "second", etc. do not indicate the importance of the components, and thus are not to be construed as limiting the present invention. The specific dimensions adopted in the present embodiment are only for illustrating the technical solution, and do not limit the protection scope of the present invention.

As shown in fig. 1 and 2, a road structure capable of improving the water drainage effect of a music road surface includes a surface layer structure 1, a cushion layer structure 2, a base structure 3 and a water drainage structure 4.

The surface layer structure, the cushion layer structure and the foundation structure are sequentially arranged from top to bottom.

The surface layer structure comprises a dredged asphalt layer 103 and an asphalt cover surface 102 which are sequentially arranged from bottom to top.

The thickness of the above-mentioned asphalt layer is preferably 10mm, and the asphalt material is preferably high-permeability emulsified asphalt.

The thickness of the asphalt mat coat is 10-20 mm, the maximum nominal particle diameter of particles in the asphalt mat coat is 9.5-13.2 mm, the porosity is 13-15%, and the drainage effect of the surface layer structure can be improved, so that the road surface residual water can infiltrate into the broken stone water storage cushion layer at the time, and the surface layer is prevented from being water layer. Meanwhile, the asphalt cover layer has low rigidity, so that the clumsy 'impact noise' generated by the tire on the groove can be effectively removed, musical tones are highlighted, and the sounding effect of the music pavement is improved.

The top of the asphalt mat is provided with a music notch 101, the depth of the music notch is 5-10mm, the depth of the notch cannot exceed the thickness of the asphalt mat, and the thickness difference between the notch and the thickness of the asphalt mat is kept 5-10mm so as to delay the damage of the mat layer caused by stress concentration, and the width of the music notch is 8-12mm.

The construction distance and the interval of the music score grooves are suitable for selecting the music segments according to the design speed of the selected segments, the segments with high speed are matched with the music segments with high tones, and the segments with low speed are matched with the music segments with low tones, so that the driving experience of the music road is improved.

Preferably, the construction distance and the construction distance are set on the surface layer according to the requirements of the music pavement on the audio frequency and the sound length, and the concrete implementation process is as follows:

(1) Dividing music into "1, 2, 3, 4, 5, 6, 7, 1" and continuous tones;

(2) The duration of each of the successive tones is calculated, specifically: t(s) =60/n×note length/quarter note length;

wherein: n is the beats per minute of the note.

(3) The construction distance corresponding to each note frequency is calculated, and specifically: s (m) =v×t.

Wherein: v is the design speed of the road, and the unit is m/s; t is the tone duration in s.

(4) The score groove distance corresponding to each note frequency is calculated, and specifically: l (m) =v/f.

Wherein: v is the design speed unit of the road is m/s; f is the frequency corresponding to each note in Hz.

As shown in fig. 3, the bottom and side walls of each musical score groove are coated with a waterproof material, preferably modified asphalt 104, with a coating wall thickness of preferably 2-3mm.

Further, one or a combination of a water repellent, rubber particles, a chloride salt type antifreeze material and the like is added into the modified asphalt, so that the area of direct contact between transverse grooving and water can be reduced. In cold winter, the ice inside the music score groove can be reduced, the anti-skid effect of the road surface is increased, the damage of the ice inside the music score groove to the score groove is reduced, and the road surface has a good frost crack prevention effect

As shown in fig. 3, the side wall of each music score groove is preferably provided with a plurality of inclined drain slits 105; the width of each inclined drain seam is 1-2mm, and the inclination angle of each inclined drain seam and the horizontal plane is 30-60 degrees, so that the clunk noise emitted by the front side of the tire directly colliding on the groove is promoted to be dissipated from the fine seam, and the sound production effect of the music road surface is improved.

Further, the top surface of the asphalt mat is provided with a bidirectional transverse slope to drain the accumulated water on the road surface to the drainage structures on the two sides.

The top of the bidirectional transverse slope is positioned at the center of the pavement of the asphalt cover surface; the gap of the oblique drainage gaps positioned in the middle of the bidirectional transverse slope is d1, and the gaps of the oblique drainage gaps positioned at the two sides of the bidirectional transverse slope are d2, wherein d1 is larger than d2, as shown in fig. 4, so that residual water in the music notch groove can infiltrate into the broken stone water storage cushion layer at the same time, and water accumulation in the music notch groove is avoided; the non-equidistant drain seams change the monotonous natural frequency of the grooves, characterize the change characteristic of sound along with time, and a single groove gives out a plurality of notes to form the musical aesthetic feeling of 'complex sound'.

The cushion structure comprises a broken stone water storage cushion layer 201, a dredging cushion layer 202 and a fine stone cushion layer 203 which are sequentially arranged from top to bottom; wherein, the average grain diameter of fine stones in the fine stone cushion layer is smaller than the average grain diameter of broken stones in the broken stone water storage cushion layer. The method comprises the following steps: the particle size distribution of the broken stone in the broken stone water storage cushion layer is preferably 3-5 mm; the grain size distribution of fine stones in the fine stone cushion layer is 1-3 mm, and the grain size distribution of cushion layer grains in the dredging cushion layer is 5-10 mm.

The particle size of the broken stone water storage cushion layer is set, so that stress concentration at the notch of music can be effectively diffused, the service life of the surface layer is prolonged, and accumulated water is collected and discharged to two sides step by step.

The foundation structure comprises an artificial roadbed 301 and a natural soil base 302; wherein the artificial roadbed is arranged at the bottom of the cushion layer structure; the natural soil base sets up in artificial roadbed both sides, and the top flushes with the fine stone bed course top in the bed course structure.

The drainage structures are arranged on two sides of the surface layer structure and the cushion layer structure and used for draining the surface layer structure and the cushion layer structure.

The drainage structure comprises an assembly slot 403, a well cover 401, a longitudinal collecting pipe 404, a flow guiding pipe 405, a sieve plate 407 and a drainage pipe 406.

The assembly grooves are arranged on the tops of the natural soil bases at two sides of the traffic lane, and the cross section of the assembly grooves is preferably rectangular, trapezoidal or grooved. The gradient of the assembly slot 403 is the same as the gradient of the longitudinal slope of the highway, a drain pipe 406 is arranged at the lowest point of the assembly slot 403, and the drain pipe 406 is communicated with the side wall of the assembly slot 403. The height of the inner bottom of the drain pipe 406 is lower than that of the assembly groove 403, and when in use, accumulated water is collected in the assembly groove 403 and then discharged to the outside of the road through the drain pipe 406.

The well cover is arranged at the top of each assembly slot, and is preferably a rainwater grate well cover, and compared with a cover plate arranged above the existing gap-type drainage ditch, the rainwater grate well cover has a large number of water discharge holes, and the invention can increase the water flow rate and quicken the water flow speed. The height of the rainwater grate well cover is lower than that of the road surface adjacent to the rainwater grate well cover, so that accumulated water can more easily flow into the assembly slot.

The screen plate is vertically arranged close to the surface layer structure, the broken stone water storage cushion layer and the dredging cushion layer. The number of the mesh holes in the music pavement is ten, and the mesh holes are uniform in size, so that water seepage in the music pavement is effectively led to the assembly grooves, and the wetted surface layer and base layer materials are prevented from sliding off and blocking the assembly grooves.

Longitudinal collecting ducts 404 are provided closely in the longitudinal direction (i.e., running direction) on both sides of the fine stone blanket 203. The gradient of the longitudinal collecting pipeline 404 is the same as that of the longitudinal slope of the highway, and a flow guiding pipe 405 is arranged at the lowest point. The flow guide pipe 405 is disposed along the depth direction, passes through the bottom of the artificial roadbed along the side slope of the artificial roadbed, and is connected with the drain pipe 406. When in use, accumulated water in the road structure is collected in the longitudinal collecting pipeline 404, connected with the drain pipe 406 through the guide pipe 405 and finally discharged to the outside of the road.

In this embodiment, when there are a plurality of water outlets, the distance between two adjacent water outlets is 5-10m.

The invention can be applied to the reconstruction engineering of road sections with easy water accumulation on music road surfaces, can effectively eliminate the road surface water accumulation problem of the music road, and avoids bad music effect, traffic accidents and structural damage caused by the water accumulation problem. By adopting the technical scheme, the road surface accumulated water is dredged through the grooved surface layer structure 1 and the drainage structure 4, so that the road surface is prevented from forming a water layer; the cushion layer structure 2 with the drainage structure is matched with the longitudinal collecting pipeline 404, the guide pipe 405 and the drain pipe 406 to gradually discharge absorbed accumulated water to two sides, so that the whole structure can continuously conduct continuous drainage of the accumulated water.

The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the specific details of the above embodiments, and various equivalent changes can be made to the technical solution of the present invention within the scope of the technical concept of the present invention, and all the equivalent changes belong to the protection scope of the present invention.

Claims (10)

1. The utility model provides a road structure that can improve music road surface drainage effect which characterized in that: comprises a surface layer structure, a cushion layer structure, a foundation structure and a drainage structure;

the surface layer structure, the cushion layer structure and the foundation structure are sequentially arranged from top to bottom;

the surface layer structure comprises a dredging asphalt layer and an asphalt cover surface which are sequentially arranged from bottom to top;

the thickness of the asphalt mat coat is 10-20 mm, the maximum nominal particle diameter of the particles in the asphalt mat coat is 9.5-13.2 mm, and the porosity is 13-15%;

the top of the asphalt mat surface is provided with a music notch, the depth of the music notch is 5-10mm smaller than the thickness of the asphalt mat surface, and the width of the music notch is 8-12mm;

the bottom and the side wall of each music notch are coated with waterproof materials;

the side wall of each music notch is provided with a plurality of oblique drain seams; the width of each inclined drain seam is 1-2mm, and the inclination angle of each inclined drain seam and the horizontal plane is 30-60 degrees;

the drainage structures are arranged on two sides of the surface layer structure and the cushion layer structure and used for draining the surface layer structure and the cushion layer structure.

2. The road structure capable of improving the water drainage effect of a music road surface according to claim 1, wherein: the top surface of the asphalt mat surface is provided with a bidirectional transverse slope, and the slope top of the bidirectional transverse slope is positioned at the center of the pavement of the asphalt mat surface; the clearance of the oblique drainage joints positioned in the middle of the bidirectional transverse slope is d1, and the clearance of the oblique drainage joints positioned at the two sides of the bidirectional transverse slope is d2, wherein d1 is more than d2.

3. The road structure capable of improving the water drainage effect of a music road surface according to claim 1, wherein: the cushion structure comprises a broken stone water storage cushion layer, a dredging cushion layer and a fine stone cushion layer which are sequentially arranged from top to bottom; wherein, the average grain diameter of fine stones in the fine stone cushion layer is smaller than the average grain diameter of broken stones in the broken stone water storage cushion layer.

4. A road structure capable of improving a music road surface drainage effect according to claim 3, characterized in that: the particle size distribution of the broken stone in the broken stone water storage cushion layer is 3-5 mm; the grain size distribution of fine stones in the fine stone cushion layer is 1-3 mm, and the grain size distribution of cushion layer grains in the dredging cushion layer is 5-10 mm.

5. The road structure capable of improving the water drainage effect of a music road surface according to claim 1, wherein: the waterproof material coated in each music notch is modified asphalt, and the coating wall thickness of the modified asphalt is 2-3mm.

6. The road structure capable of improving a music road surface drainage effect according to claim 5, wherein: the modified asphalt is added with a water repellent.

7. The road structure capable of improving a music road surface drainage effect according to claim 5 or 6, characterized in that: the modified asphalt is added with a chloride salt type antifreeze material.

8. A road structure capable of improving a music road surface drainage effect according to claim 3, characterized in that: the foundation structure comprises an artificial roadbed and a natural soil foundation; wherein the artificial roadbed is arranged at the bottom of the cushion layer structure; the natural soil base sets up in artificial roadbed both sides, and the top flushes with the fine stone bed course top in the bed course structure.

9. The road structure capable of improving a music road surface drainage effect according to claim 8, wherein: the drainage structure comprises an assembly slot, a well cover, a longitudinal collecting pipe, a sieve plate and a drain pipe;

the assembly slots are arranged at the tops of the natural soil bases at two sides of the travelling lane;

the well cover is arranged at the top of each assembly slot;

the screen plates are adhered to two sides of the surface layer structure, the broken stone water storage cushion layer and the dredging cushion layer of the cushion layer structure;

the longitudinal collecting pipe is longitudinally embedded in the fine stone cushion layer;

the drain pipe is used for draining the water body in the assembly slot and the longitudinal collecting pipe.

10. The road structure capable of improving a music road surface drainage effect according to claim 9, wherein: a plurality of water holes with the same size are arranged in the sieve plate, and the mesh number of each water hole is ten.

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